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在这里就磨子潭水库泄洪隧洞灌浆施工中所体会到的几个问题简单地谈谈,供同志们参考。一、固结灌浆根据地质情况及隧洞要求,很多隧洞都要进行固结灌浆。磨子潭水库隧洞在洞身出口部分及其他岩石破碎带也进行了固结灌浆,钻孔深度3—5公尺不等。固结灌浆施工方法:一种是先衬砌再钻孔灌浆;一种是先钻孔衬砌后再灌浆。很多工地都采用了前一种方法,后者采用较少。磨子潭水库隧洞固结灌浆的施工采用了后一种方法,即先钻孔衬砌后再灌浆。实践证明,这一方法具有较突出的优点:衬前钻孔,可以根据岩石的节理发育破碎情况及岩层走向,适当布孔,准确地掌握钻孔深度和方向,同
Here to talk about a few problems in the construction of spillway tunnel grouting Moutazitan Reservoir simply talk about for your reference. First, the consolidation grouting According to the geological conditions and tunnel requirements, many tunnels should be consolidation grouting. Mozitan Reservoir Tunnel exit part of the hole in the rock and other rock fragments have also been consolidation grouting, drilling depth of 3-5 meters. Consolidation grouting construction methods: one is to re-lining the first lining grouting; one is after the first lining lining re-grouting. Many sites have adopted the former method, which uses less. Mudzitan Reservoir tunnel consolidation grouting construction using the latter method, that is, after the first lining of the lining after re-grouting. Practice has proved that this method has the more prominent advantages: lining the front of the hole, according to the rock joint development crushing conditions and the direction of rock, appropriate holes, accurately grasp the depth and direction of the hole, with